My mpc xl 2000 does nothing ....

Hi,

I have an mpc xl 2000 , when i power it on , i get a blank screen and all the little green lights stays on .
can anyone tell me what it could be ? ................


i've tried : card reader , memory , wires inside , i took it to a technician that told me he dont know what's wrong , hahaha, .

but im willing to sell , inside ive got a : flash card reader
max ram
8 out put board
efect board
and the original mpc it self


make me an offer , or help me get the problem fixed , thank you .

i assume hes talking about the full level, 16 levels, pad bank ect ect ect lights.